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Clean Code in JavaScript
book

Clean Code in JavaScript

by James Padolsey
January 2020
Intermediate to advanced
548 pages
13h 36m
English
Packt Publishing
Content preview from Clean Code in JavaScript

What is a test?

A software test is an automated procedure that makes assertions about a piece of code and then reports the success of those assertions back to you. A test may make assertions about anything from an individual function to the behavior of an entire feature.

Tests, much like the rest of our code, deal in layers of abstraction and granularity. If we were to test a car abstractly, we may simply seek to assert the following attributes:

  • It has four wheels
  • It has a steering wheel
  • It drives
  • It has a working horn

Obviously, this is not a very useful set of assertions for car engineers, as these attributes are either incredibly obvious or insufficiently described. The assertion It drives is important, but without extra detail, all ...

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Publisher Resources

ISBN: 9781789957648